//
//  UIButton+Extension.swift
//  weiBo
//
//  Created by mac on 15/11/23.
//  Copyright © 2015年 mac. All rights reserved.
//

import UIKit

extension UIButton {
    
    //便利构造函数
    convenience init(imageName: String, backImageName: String) {
        self.init()
        
        setImage(UIImage(named: imageName), forState: UIControlState.Normal)
        setImage(UIImage(named: imageName + "_highlighted"), forState: UIControlState.Highlighted)
        setBackgroundImage(UIImage(named: backImageName), forState: UIControlState.Normal)
        setBackgroundImage(UIImage(named: backImageName + "_highlighted"), forState: UIControlState.Highlighted)
        //根据背景图片的大小调整尺寸
        sizeToFit()
    }
    
    //便利构造函数
    
    convenience init(title: String, color: UIColor, imageName: String) {
        self.init()
        
        setTitle(title, forState:  UIControlState.Normal)
        setTitleColor(color, forState: UIControlState.Normal)
        setBackgroundImage(UIImage(named: imageName), forState: UIControlState.Normal)
    }
}
